もう春なんだなあ

Recording by ふきのとう.

Recording identifiers

ISRC
JPSR08505360
CopyrightID (CopyrightChains transaction hash)
0x3581cd26b61db0f45ecdd0f1c0d05e945e0663a661b03eebc215f7ca96da517b
Copyright registration time
2026-07-07T13:05:15+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp
2026-07-08T03:53:27Z
Bitcoin block
957124
Canonical record hash
sha256:80f1fbe8e9138f2888223f81097787fed28c64c6070d85e4211b9d81808e21d7

What this proof establishes

This recording belongs to ProofProfile's historical evidence base derived from the pre-2022 AcousticBrainz and MusicBrainz corpus. ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.